Marking tool



Feb. 267, 11923.. 11,446,647

K. I HIRTSCHULZ MARKING TOOL Filed June'l2, 1920 llllllll Patented Feb,2?, i923. Parent (QFFEQEO KURT HIR'EECHULZ, h BERLIN, GER-MANY,-ASSIGNOR, BY DIRECT AND IKESNE ASSIGNMENTS, OF ONE-HALF '30NORDDEUTSGHE METALTNVABENFABRIK (-1-. 1E. B. H., OF BERLIN, GER-MANY,AND ONE-HALF TO MARBURG BRVO'IHERS, INC, OF NEW YORK, N. Y., A FIRM.

MAB-KING 'JOOL.

Application filed June 12, 1920. Serial No. 388,692.

To aZZ whom it may concern: The tool is then turned sov that the arm Beit known that T, KURT HIn'rsoHULZ, a carrying the type to be marked isrestcitizen of the German Republic, residing at ing on the object, thecorresponding nulierlin, Germany, have invented certain new meral nearthe upper part of the circumfer- 5 and useful Improvements in MarkingTools, ence being now vertically above said arm. of which the followingis a specification. The point immediately above this figure My inventionrefers to a marking tool for is now hit with the hammer Z and thenumarking boxes, or other objects or for punchmeral is marked thereby onthe object. In ing letters and other marks in metallic oborder to markthereon the next-succeeding 1o jects. numeral, the corresponding arm I;need In the tool according to my invention the merely be applied theretoand another blow types, letters, numerals etc. are arranged on with thehammer will mark it down. Thus the free ends of separate arms radiallydis-- the tool need not be released between two posed around the centerof a circular disk blows nor is it necessary to look for the 15 whichmay consist of metal, wood or any following arm, so that the markingproceeds other suitable material according to whether much quicker andeasier than before. the types are cut in metal, wood, rubber or Insteadof numerals other types (letters, the like. Preferably only about onehalf trade-marks, quality-marks and so on) may of the periphery of thedisk is set with typebe formed on the arms I), which may be 20 hearingarms while the other half is plain present in any desire-d number, andthe and serves to receive the blows of the hammarks, instead of beingintegral with the mer in case that the marking shall be done arms, mayas well be formed on separate 7 in this way. parts interchangeablyconnected with the Tn the .drawings affixed to this specificaarms. Inorder to feature economy in tion and forming part thereof the preferredmanufacturing cost it is appreciated that form of a tool according tothe present inthe disk may be formed simply by cutting vention isillustrated, in which a slice from a round steel bar and the teeth- Fig.1 is a perspective view of the tool like dies cut therein on an ordinarymilling itself, while machine.

30 Fig. 2 is a like view showing the mode of I claim applying marks to ametallic object by aid 1. As an article of manufacture, a metallic of ahammer. ten-character marking tool of relatively Referring to thedrawings, a is a substanlight weight so as to be capable of ready tiallycircular steel disk and 6, Z) are ten manual manipulation, said toolhaving a arms radially disposed around the center fiat, circulardisk-like form with approxiof said disk and covering about one half ofmately one-half on the periphery provided its circumference, each armcarrying at its with eleven equally spaced apart recesses free end oneof the types 0, 1, 2 9. forming ten marking dies therebetween, Thecorresponding numeral is disposed at each die having a differentcharacter from 40 the root of each in order to facilitate each of theother dies, and the other half their selection. The other half of thecirof the periphery being substantially smooth cumference of the disk isplain and correand continuous between the end recesses to spondingnumerals are marked near this form an arched percussion surface, theperpart of the circumference on the diameters cussion receiving portionoutlined by the 45 passing through the single arms, so that smoothperiphery being solid for substanlike numerals appear at both ends ofeach tially one-half of the side of the tool therediameter. Aperforation c, which may as by to provide a rugged part for receivingwell be replaced by a depression, is provided and transmitting thepercussion shocks in the center of the disk. therethrough to theoppositely disposed 50 In order to mark a metallic object by markingcharacters.

aid of the device described, the disk is 2. A metallic marking toolcomprising a gripped with the left hand, the thumb and flat circulardisk with approximately oncforefinger resting on the centralperforation. half of the periphery provided with a plurality tofrecesses. torming a sp ur gear like effect having more than three teethformlng dles and the remaining part of the periphery -opposite thed-iesconstituting. a

percussion surface of :greatercircumferential length than-any of thedies.

3. A metallic marking tool comprising a flat circular disk Withapproximately onehalf of the periphery provided Withranplurality ofrecesses forming a spur-gear like eifect having more than 'three teethforming dies. and the remaining part of the periphery opposite the diesconstituting a percussion surface of greater circumferentiallength'tha-n-any of the dies, said disk providedwith an apertureextending axially therethrough to provide a bearing fOI rotating thetool'hetWeenth-e operatorsfingers and" tending to reduce the Weight ofthe tool.

4. A marking tool comprising a flat disk having'a plurality of closelypositioned dies forming one side of the periphery and continuous-.percussion surface constituting.

posed adjacent its respective die and a similar character of the otherset disposed in diametrically opposite relation and adjacent thepercussion surface thereby to indicate to the operator iviewing one sideof the disk the point of application on the percussion surface requiredto be struck to form thedesired mark.

In'testimony whereof I afiix my si'gnature.

KURT HIRTSCHULZ.

